3378876728 has 16 divisors (see below), whose sum is σ = 6347561760. Its totient is φ = 1686193600.

The previous prime is 3378876727. The next prime is 3378876737. The reversal of 3378876728 is 8276788733.

It is a happy number.

It is a super-2 number, since 2×3378876728² = 22833615886039971968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3378876727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401168 + ... + 409503.

It is an arithmetic number, because the mean of its divisors is an integer number (396722610).

Almost surely, 2^3378876728 is an apocalyptic number.

It is an amenable number.

3378876728 is a deficient number, since it is larger than the sum of its proper divisors (2968685032).

3378876728 is a wasteful number, since it uses less digits than its factorization.

3378876728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811198 (or 811194 counting only the distinct ones).

The product of its digits is 18966528, while the sum is 59.

The square root of 3378876728 is about 58128.1061793690. The cubic root of 3378876728 is about 1500.5741103109.

The spelling of 3378876728 in words is "three billion, three hundred seventy-eight million, eight hundred seventy-six thousand, seven hundred twenty-eight".